With all respect, I am not sure you have thought the matter through. Cell phone service does not extend to the open ocean. And bullying/intimidation often achieves the opposite of the desired behaviour.
The goal is to ensure that the message is credible, that it gets to someone with actual authority, and that action has been taken.
I think he meant the ship based phone network. The phones on a cruise ship are set to use "911" as the general emergency line so the landlubbers know what to do.